Coolutils' Mail Viewer is a free program that lets you view MSG, EML, EMLX, P7M, ICS, VCF and winmail.dat (TNEF) files. Although Microsoft's MSG format is great for storing emails, there just aren't many ways to access and view those files outside of the Outlook server Exchange client. Added to that, Microsoft's EML format (associated with Outlook Express) also gives users problems when trying to open and view.
The good news is - we can help! If you're stuck trying to open MSG or EML files but don't have access to your Outlook client, CoolUtils' Mail Viewer is the perfect solution. Not only does it let you open and view MSG and EML files from anywhere; it's free, and by free we mean totally free for home users. No hidden downloads, no ads, no toolbars, no having to pay later: 100% free!
CoolUtils Mail Viewer is also capable of generating a "fact file" related to your emails. Made available to you in your choice of TXT, PDF, XLS, CSV, or HTML these reports are able to provide you with valuable data re: your email activity. All you need to do is choose which fields you'd like to report on; Sender, Recipient, Date, Attachment, etc. Tune the report to your needs by including only specific fields, or examine them all!
Technical details
Publisher
Softplicity, Inc.
Author
CoolUtils Software
Version
7.1.9791.36253
Release date
2025-10-13
License
Freeware
Installer type
inno
Architecture
x86
Package ID
Softplicity.CoolUtilsMailViewer
Admin rights
Required
Install CoolUtils Mail Viewer from the command line
CoolUtils Mail Viewer can open or be associated with 6 file types:
.EML.EMLX.ICS.MSG.P7M.VCF
CoolUtils Mail Viewer version history
7.1.9779.1158Oct 13, 2025
Frequently asked questions
Is CoolUtils Mail Viewer free?
Yes, CoolUtils Mail Viewer is free to download and use on Windows.
What is the latest version of CoolUtils Mail Viewer?
The latest version is 7.1.9791.36253, released on Oct 13, 2025.
Is it safe to download CoolUtils Mail Viewer?
The download button links to the official installer published on coolutils.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 9558007e351170648fde486efa6d9e6246fc6301bf4d0b1fd6b94e1289062ff1.
Which Windows versions does CoolUtils Mail Viewer support?
CoolUtils Mail Viewer runs on Windows and is available for 32-bit (x86) systems.
How do I install CoolUtils Mail Viewer silently?
Run the offline installer with "MailViewer.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-, or install it with Windows Package Manager: winget install --id=Softplicity.CoolUtilsMailViewer -e --silent.
How do I uninstall CoolUtils Mail Viewer?
Open Settings › Apps › Installed apps, find CoolUtils Mail Viewer and select Uninstall. From the command line, run winget uninstall --id=Softplicity.CoolUtilsMailViewer -e.
What file types can CoolUtils Mail Viewer open?
CoolUtils Mail Viewer supports 6 file types, including .EML, .EMLX, .ICS, .MSG, .P7M, .VCF.
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